Articles & Issues

Language: korean

Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

All issues

전산유체역학 기법을 이용한 촉매 멤브레인 반응기 해석

Analysis of the Catalytic Membrane Reactor by CFD Method

박정수 서정철¹ 신동일² 윤인섭^†

Jeong Su Park Jung Chul Suh¹ Dongil Shin² En Sup Yoon^†

서울대학교 응용화학부, 151-742 서울시 관악구 신림동 산56-1 ¹한국가스공사 연구개발원, 429-712 경기도 시흥시 대야동 332-1 ²명지대학교 화학공학과, 449-728 경기도 용인시 남동 산 38-2

School of Chemical Engineering, Seoul National University, San 56-1, Shilim-dong, Gwanak-gu, Seoul 151-742, Korea ¹Korea Gas Corporation R&D Division, 332-1, Daeya-dong, Shihung, Gyonggi 429-712, Korea ²Department of Chemical Engineering, Myongji University, San 38-2, Nam-dong, Yongin, Kyonggi 449-728, Korea

HWAHAK KONGHAK, December 2003, 41(6), 700-709(10), NONE

Download PDF

Abstract

본 연구에서는 수성가스전환 고정층 촉매 멤브레인 반응기를 CFD(computational fluid dynamics)기술을 이용하여 해석했다. 수성가스전환반응에 대한 반응 속도식을 조사하고, 이를 모사할 수 있는 촉매 반응기 모델을 만들어 모사했으며 문헌치와 비교했다. 그리고 이에 합당한 반응속도식을 선정하고, 이를 이용하여 반응최적온도가 630K임을 알아냈다. 수소 선택적 투과 멤브레인에 대한 CFD모사 모듈을 개발하여 촉매 멤브레인 반응기에 대해 모사하고 문헌치와 비교, 분석했다. 멤브레인의 투과속도를 변화시켜 반응 전화율에 영향을 주는 변수들인 온도, 압력, 투과측 이송가스(sweep gas)유속 및 흐름 방향, 멤브레인 두께를 가변시켜 해석했다.

Results of the analysis of a catalytic membrane reactor for the water gas shift (WGS) reaction are presented and discussed using CFD (computational fluid dynamics) technique. Reaction kinetic expressions were researched, and Langmuir-Hinshelwood kinetic’s expression gives the best result. The optimal operation temperature was found out to be 630K. A CFD module for the palladium (Pd) membrane, separating hydrogen, was also developed, simulated and compared to the references. It easily simulates the effects of the reaction temperature, pressure, sweep gas flow rate, sweep gas flow direction and palladium membrane thickness on the CO conversion of the catalytic membrane reactor. Results of the analysis are very useful in the commercialization of the hydrogen-generation process, and the developed simulation framework is easily adaptable for_x000D_ further design and modification when more detailed profiles are necessary.

Keywords

CFD (computational fluid dynamics) Water Gas Shift Reaction Catalytic Membrane Reactor

References

Newsome DS, Kellog P, Catal. Rev.-Sci. Eng., 21(2), 275 (1980)
Itoh N, Shindo Y, Haraya K, Obata K, Hakuta T, Yoshitome H, Int. Chem. Eng., 25, 13 (1985)
Violante V, Basile A, Drioli E, Fusion Eng. Design, 30, 217 (1995)
Basile A, Chiappetta G, Tosti S, Violante V, Sep. Purif. Technol., 25, 549 (2001)
Criscuoli A, Basile A, Drioli E, Catal. Today, 56(1-3), 53 (2000)
Dutta S, Shimpalee S, Van Zee JW, Int. J. Heat Mass Transf., 44(11), 2029 (2001)
Kumar A, Reddy RG, J. Power Sources, 113(1), 11 (2003)
Basile A, Paturzo L, Lagana F, Catal. Today, 67(1-3), 65 (2001)
Criscuoli A, Basile A, Drioli E, Loiacono O, J. Membr. Sci., 181(1), 21 (2001)
Ward TL, Dao T, J. Membr. Sci., 153(2), 211 (1999)
"The Properties of Gases and Liquids II," 5th Edition, McGraw-Hill, 11.13-11.1 (2000)
Fluent Inc., FLUENT 6.0 User's Guide, 3 (2001)
Tosti S, Bettinali L, Violante V, Int. J. Hydrog. Energy, 25(4), 319 (2000)
FLUENT Inc., Journal Article by FLUENT Software Users, JA092 (1999)